Thread clip scissors



June 27, 1950 ,NGWER 2,512,862

THREAD CLIP SCISSORS Filed Aug. 4, 1948 E 7 E INVENTOR.

MAX INGWER Patented June 27, 1950 THREAD CLIP sorssons,

Max Ingwer, New York, N. Y., assignor to Consolidated Sewing Machine &Supply 00., Inc., New York, N. Y., a corporation of New York ApplicationAugust 4, 1948, Serial No. 42,409

3 Claims. (01. 30-332) The invention herein disclosed relates to theconstruction of scissors for clipping threads.

These devices are used by tailors and it is important that they be of aform which can be quickly picked up and grasped in the fingers, be easyto operate and be fast and accurate in action.

It is desirable also that these so-called thread clippers be of smallsize, light weight and noncomplicated structure, be of a lasting,durable character, consist of but few parts and be of low cost.

All these and other desirable results are attained in the presentinvention through the novel features of construction, combinations andrelations of parts as hereinafter described and illustrated in theaccompanying drawing.

In the drawing referred to, a single practical embodiment of theinvention is illustrated but it will be appreciated that structure willbe modified and changed as regards this illustration, all within thetrue intent and scope of the invention as hereinafter defined andclaimed.

Fig. 1 in the drawing is a front elevation of a thread clipper embodyingthe invention;

Fig. 2 is an elevation of the reverse side of the clipper;

Fig. 3 is a top plan or edge view of the device;

Figs. 4., 5, 6 and 7 are enlarged cross sectional details as on thecorrespondingly numbered planes indicated in Fig. 2, only one, thelower, blade being shown in Figs. 6 and 7.

The two blades constituting the scissors are designated 9 and Ill andthey are shown pivotally connected by a screw ll passing freely throughthe first, front or top blade 3 into a screw seat ii in the back orlower blade Hi.

The latter has a finger 100p l3 and the upper and lower edges of bothblades are suitably rounded so that necessary finger pressure can beapplied for closing the blades against the opening tension applied bythe spring 14.

The spring is shown coiled about the shank of the pivot screw and ashaving its opposite ends engaged at l5, N5, in openings in the twoblades.

To accommodate the spring between the blades the front blade is shown ashaving a laterally ofiset portion ll of a longitudinal extent justsufiicient to freely receive the coils and terminal end portions of thespring.

Both blades are shown as having longitudinal extensions to the rear ofthe pivotal connection, arranged in laterally overlapping relation toserve as companion stops limiting the opening movement of the blades.

In the illustration the lower or back blade has a substantially straightrearward extension l8 and the front or top blade has a laterally bentextension l9 overlying the extension l8.

With this construction all bending operations are on just the one blade,the front blade 9, and these involve merely a forward offset H in thelocality of the hand screw and an angular deflection [9 on the end ofthe rearward extension of that blade. These forward and rearward offsetsin the blade may be both imparted in a single die operation.

The closing movement of the two blades is limited in the presentdisclosure by striking an integral lug 29 out of the back blade Ill inposition for engagement by the lower edge of the front blade in thenon-cutting portion adjacent the pivot connection.

The construction is particularly simple and consists of just the fourparts, the two blades, pivot screw and spring. No milling or machiningoperations are required. Both the opening and the closing stops areintegral with the blades and so no separately applied parts arerequired.

The construction is of a durable character and can be produced andassembled at a low cost. The spring is fully housed between the bladesand this is accomplished without cutting away the material of theblades.

The blades can be made of relatively light, thin stock and the device asa whole is light in weight and of small size, convenient to be picked upand used.

What is claimed is:

1. A thread clip scissors comprising companion blades pivotallyconnected together and having integral extensions to the rear of thepivotal connection in relatively overlapping relation to constituteabutments limiting the opening movement of the blades and one bladehaving a laterally offset portion about the pivotal connection providingspace between the blades in the pivotal region and a blade openingspring located in said space and arranged to apply opening force to theblades.

2. A thread clip scissors comprising a lower blade having a finger loopand an integral projection adjoining the same, an upper blade having alaterally offset portion, a pivot screw connecting the blades andextending through said laterally offset portion and a blade openingspring engaged about said pivot screw and located in the space providedby said laterally offset portion of the upper blade.

3. A thread clip scissors comprising a lower blade having a finger loopand an integral projection adjoining the same, an upper blade havingREFERENCES CITEfi a laterally offset portion, a pivot screw connect- Thefollowing references are of record in the ing the blades and extendingthrough said later- I ally ofiset portion and a blade opening spring meof this patent engaged about said pivot screw and located in 5 UNITEDSTATES PATENTS the space provided by said laterally offset portion ofthe upper blade, both blades having longitu- Number Name Date dinalextensions in rear of the pivotal connection 770,347 own sent. 20, 1904and the extension of one of said blades being 6, Schrade June 6,1916

bent out of line with that blade to engage the 10 1,531,903 Cummins M8131925 extension of the other blade.

MAX INGWER.

